Give agents
a spending fence.

Turn a few plain limits into a portable policy for your x402-capable agent. Pick approved hosts, cap each call, and set a daily ceiling.

01 / SET THE FENCE

Your limits

local only

Max per call USD

USDC

Daily cap USD

USDC

Human approval above USD

USDC

Network

Approved HTTPS hosts one per line

Enter hostnames only. Wildcards, paths, HTTP and private/local addresses are rejected.

Reject destinations that are not on this list. Ask a person before raising a limit or adding a host.

02 / REVIEW & EXPORT

VALIDATING…

agent-spend-policy.jsonupdates as you type

Allowlist beats a prompt

Enforce the exported limits in your payment client or gateway. This file alone cannot block a payment.

Cap the whole day

Keep the daily budget small enough that repeated calls stay predictable.

Keep a human in the loop

Require approval before increasing caps, changing chains, or adding destinations.